GeForce 9500 GT DDR2 vs GeForce GTX 950

Intro

Compare all that to the GeForce GTX 950, which makes use of a 28 nm design. nVidia has set the core speed at 1024 MHz. The GDDR5 memory works at a frequency of 1652 MHz on this specific model. It features 768 SPUs as well as 48 TAUs and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9500 GT DDR2		50 Watts
GeForce GTX 950		90 Watts
	Difference: 40 Watts (80%)

Memory Bandwidth

Theoretically, the GeForce GTX 950 should be a lot faster than the GeForce 9500 GT DDR2 overall. (explain)

GeForce GTX 950		105728 MB/sec
GeForce 9500 GT DDR2		16000 MB/sec
	Difference: 89728 (561%)

Texel Rate

The GeForce GTX 950 will be much (approximately 459%) more effective at AF than the GeForce 9500 GT DDR2. (explain)

GeForce GTX 950		49152 Mtexels/sec
GeForce 9500 GT DDR2		8800 Mtexels/sec
	Difference: 40352 (459%)

Pixel Rate

The GeForce GTX 950 should be quite a bit (more or less 645%) more effective at full screen anti-aliasing than the GeForce 9500 GT DDR2, and also capable of handling higher screen resolutions more effectively. (explain)

GeForce GTX 950		32768 Mpixels/sec
GeForce 9500 GT DDR2		4400 Mpixels/sec
	Difference: 28368 (645%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the largest amount of data (in units of MB per second) that can be transported past the external memory interface in a second. The number is worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This figure is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The better this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.